Electrophoresis display particle comprising metal component and preparation method as well as functions thereof

A metal particle, electrophoretic display technology, applied in chemical instruments and methods, dyed polymer organic compound processing, optics, etc., can solve the problem of not being able to impart color to electro-optical displays

Inactive Publication Date: 2013-07-24
GUANGZHOU OED TECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Yet what this inventive method provides is only black / white particle, still can't endow electro-optic display with abundant color

Method used

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  • Electrophoresis display particle comprising metal component and preparation method as well as functions thereof
  • Electrophoresis display particle comprising metal component and preparation method as well as functions thereof
  • Electrophoresis display particle comprising metal component and preparation method as well as functions thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0069] Example 1: Preparation of red electrophoretic display particles using gold nanoparticles

[0070] (1), get 1ml concentration and be 1% chloroauric acid solution, dilute with 80ml deionized water;

[0071] (2), get 4ml concentration and be 1% sodium citrate, add 80 microliters of tannic acid, then add 16ml deionized water to dilute;

[0072] (3), above-mentioned two kinds of solution water baths are heated to 60 degrees centigrade, then both are mixed, then transferred to 100 degrees centigrade oil baths and stirred for 10 minutes, made colloidal gold solution;

[0073] (4), centrifuge the solution in 3 steps, ultrasonically disperse the obtained gold nanoparticles in the ethanol solution of allyl thiol for 1-3 hours, and then mechanically stir for 2-10 hours;

[0074] (5), centrifuge to remove solvent, add ethanol to clean, centrifuge again, then add ethanol to clean and centrifuge;

[0075] (6), add toluene to wash and centrifuge twice;

[0076] (7), ultrasonicall...

Embodiment 2

[0081] Example 2: Preparation of yellow electrophoretic display particles using SiO2 / Ag / SiO2 composite material

[0082] (1), 200 microliters of N-β (aminoethyl)-γ-aminopropyltrimethylsilane is dissolved in 20 milliliters of ethanol, then add a certain amount of commercial grade silica particles with a particle size of 100nm, stir 2 hours;

[0083] (2), centrifuge, and use methanol to clean and centrifuge twice, then disperse the solid in methanol;

[0084] (3), configuration concentration is the methanol solution of the silver nitrate of 0.0125mol / L, a certain amount of this solution is added the mixed liquor of step 2;

[0085] (4), place the mixture in a water bath at 30 degrees Celsius, add a small amount of formaldehyde dropwise, and stir for 1 hour;

[0086] (5), centrifugation, and respectively cleaning and centrifugation twice with water and methanol;

[0087] (6), the obtained solid is ultrasonically dispersed in methanol, and a certain amount of ethyl orthosilic...

Embodiment 3

[0092] Example 3: Preparation of yellow electrophoretic display particles using SiO2 / Ag / SiO2 composite material

[0093] Referring to the method of Example 2, the difference is that silicon dioxide is replaced by ferric oxide to prepare electrophoretic display particles of a composite material. The obtained particles have a particle size of about 50nm and bright color.

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Abstract

The invention relates to an electrophoresis display particle comprising a metal component and a preparation method as well as functions thereof. Particularly, the invention relates to the electrophoresis display particle comprising the metal component, and the electrophoresis particle comprises a particle nucleus and a decorative layer which is randomly selected for wrapping the surface of the particle nucleus. The invention further relates to a method for preparing the electrophoresis display particle, electrophoresis display liquid of the electrophoresis display particle, and functions of the electrophoresis particle for preparing an electrophoresis display device. According to the electrophoresis display particle, an electro-optical display device is endued with one or multiple extra characteristics, such as high optical reflectance, strong colors, good metal gloss and fluorescent emitting property.

Description

technical field [0001] The invention belongs to the technical field of electronic paper display, and relates to an electrophoretic display particle containing a metal component, a preparation method and application thereof. Background technique [0002] In the field of research and development of display screens, the current development trend is towards ultra-large and ultra-thin. Plastic-based flexible displays have always been a hotspot for development because of their light weight, bendability and mass production in rolls. Among them, plastic-based electrophoretic display is one of the most mature flexible display technologies so far. [0003] Compared with plastic-based liquid crystal or organic light-emitting diode technology, the electrophoretic display layer is less sensitive to the external environment, and the display layer material can be stored in ordinary environments for a long time to maintain stable performance. Moreover, because of its high contrast (even u...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/167C09C1/62C09C3/06C09C3/10C09K11/58
Inventor 白世龙张磊曾晞刘祖良陈宇
Owner GUANGZHOU OED TECH INC
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